I Marine Expeditionary Force

I Marine Expeditionary Force
I MEF insignia
Active8 November 1969 – present
Country United States of America
Branch United States Marine Corps
TypeMarine Air-Ground Task Force
RoleExpeditionary combat force
Size53,000 apprx.
Part ofU.S. Marine Forces Pacific
Garrison/HQMCB Camp Pendleton, California, U.S.
Engagements
Commanders
Current
commander
LtGen Michael S. Cederholm
Notable
commanders
Gen Joseph F. Dunford, Jr., Gen Anthony Zinni, Gen Michael Hagee, Gen James T. Conway, Gen James Mattis, Gen John F. Sattler

The I Marine Expeditionary Force ("I" pronounced "One") is a Marine Air Ground Task Force (MAGTF) of the United States Marine Corps primarily composed of the 1st Marine Division, 3rd Marine Aircraft Wing, and 1st Marine Logistics Group. It is based at Marine Corps Base Camp Pendleton.

I Marine Expeditionary Force is the largest of the three MEFs in the Fleet Marine Force and is often referred to as the "Warfighting MEF" for its consistent involvement and contributions in major armed conflicts. It is presently commanded by Lieutenant General Michael Cederholm. The deputy commander is Brigadier General Robert C. Fulford.